<?php

declare(strict_types=1);

namespace App\Filament\Resources\Webhooks;

use App\Filament\Resources\Webhooks\Pages\CreateWebhook;
use App\Filament\Resources\Webhooks\Pages\EditWebhook;
use App\Filament\Resources\Webhooks\Pages\ListWebhooks;
use App\Filament\Resources\Webhooks\RelationManagers\DeliveriesRelationManager;
use App\Models\Webhook;
use App\Rules\PublicHttpsUrl;
use App\Support\Webhooks\Webhooks;
use BackedEnum;
use Filament\Actions\Action;
use Filament\Actions\DeleteAction;
use Filament\Actions\EditAction;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Toggle;
use Filament\Notifications\Notification;
use Filament\Resources\Resource;
use Filament\Schemas\Components\Section;
use Filament\Schemas\Schema;
use Filament\Support\Icons\Heroicon;
use Filament\Tables\Columns\IconColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Table;
use Illuminate\Support\Str;
use UnitEnum;

/**
 * Outgoing webhooks: where to tell when something happens here, and how each
 * delivery went.
 */
class WebhookResource extends Resource
{
    protected static ?string $model = Webhook::class;

    protected static string|BackedEnum|null $navigationIcon = Heroicon::OutlinedBolt;

    protected static ?int $navigationSort = 85;

    protected static ?string $recordTitleAttribute = 'name';

    public static function getModelLabel(): string
    {
        return __('panel.webhooks.label');
    }

    public static function getPluralModelLabel(): string
    {
        return __('panel.webhooks.plural');
    }

    public static function getNavigationGroup(): string|UnitEnum|null
    {
        return __('panel.groups.administration');
    }

    /**
     * Red while one is switched off by failures: something is not hearing
     * what it signed up for.
     */
    public static function getNavigationBadge(): ?string
    {
        $off = static::getModel()::query()
            ->where('is_active', false)
            ->where('consecutive_failures', '>=', Webhook::MAX_FAILURES)
            ->count();

        return $off > 0 ? (string) $off : null;
    }

    public static function getNavigationBadgeColor(): ?string
    {
        return 'danger';
    }

    public static function form(Schema $schema): Schema
    {
        return $schema->components([
            Section::make()
                ->columns(2)
                ->schema([
                    TextInput::make('name')
                        ->label(__('panel.webhooks.fields.name'))
                        ->required()
                        ->maxLength(120),

                    TextInput::make('url')
                        ->label(__('panel.webhooks.fields.url'))
                        ->helperText(__('panel.webhooks.fields.url_hint'))
                        ->required()
                        ->url()
                        ->maxLength(2048)
                        ->rule(new PublicHttpsUrl),

                    Select::make('events')
                        ->label(__('panel.webhooks.fields.events'))
                        ->helperText(__('panel.webhooks.events_hint'))
                        ->multiple()
                        ->searchable()
                        ->options(fn () => self::eventOptions())
                        ->required()
                        ->columnSpanFull(),

                    Toggle::make('include_personal_data')
                        ->label(__('panel.webhooks.fields.include_personal_data'))
                        ->helperText(__('panel.webhooks.fields.include_personal_data_hint')),

                    Toggle::make('is_active')
                        ->label(__('panel.webhooks.fields.is_active'))
                        ->default(true),
                ]),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('name')
                    ->label(__('panel.webhooks.fields.name'))
                    ->weight('bold')
                    ->description(fn (Webhook $record) => $record->url)
                    ->searchable(),

                TextColumn::make('events')
                    ->label(__('panel.webhooks.fields.events'))
                    ->badge()
                    ->color('gray'),

                IconColumn::make('is_active')
                    ->label(__('panel.webhooks.fields.is_active'))
                    ->boolean(),

                TextColumn::make('consecutive_failures')
                    ->label(__('panel.webhooks.fields.failures'))
                    ->color(fn (int $state) => $state > 0 ? 'danger' : 'gray'),

                TextColumn::make('last_delivered_at')
                    ->label(__('panel.webhooks.fields.last_delivered_at'))
                    ->since()
                    ->dateTimeTooltip()
                    ->placeholder('—'),
            ])
            ->recordActions([
                self::pingAction(),
                EditAction::make(),
                DeleteAction::make(),
            ]);
    }

    public static function eventLabel(string $event): string
    {
        $key = str_replace('.', '_', $event);

        return __("panel.webhooks.events.{$key}");
    }

    /**
     * Grouped for the select: everything, the events with a meaning of their
     * own, any record by action, then each kind of record.
     *
     * @return array<string, array<string, string>>
     */
    public static function eventOptions(): array
    {
        $groups = [
            __('panel.webhooks.groups.everything') => [
                '*' => __('panel.webhooks.events.*'),
                ...collect(Webhook::ACTIONS)->mapWithKeys(fn (string $action) => [
                    "*.{$action}" => __('panel.webhooks.any_record', ['action' => self::actionLabel($action)]),
                ])->all(),
            ],
            __('panel.webhooks.groups.notices') => collect(Webhook::EVENTS)
                ->mapWithKeys(fn (string $event) => [$event => self::eventLabel($event)])
                ->all(),
        ];

        foreach (Webhook::RESOURCES as $resource) {
            $groups[__("panel.webhooks.resources.{$resource}")] = [
                "{$resource}.*" => __('panel.webhooks.all_of', ['resource' => __("panel.webhooks.resources.{$resource}")]),
                ...collect(Webhook::ACTIONS)->mapWithKeys(fn (string $action) => [
                    "{$resource}.{$action}" => __("panel.webhooks.resources.{$resource}").' · '.self::actionLabel($action),
                ])->all(),
            ];
        }

        return $groups;
    }

    protected static function actionLabel(string $action): string
    {
        return __("panel.webhooks.actions_on.{$action}");
    }

    public static function pingAction(): Action
    {
        return Action::make('ping')
            ->label(__('panel.webhooks.actions.ping'))
            ->icon('heroicon-o-paper-airplane')
            ->color('gray')
            ->authorize('update')
            ->action(function (Webhook $record): void {
                Webhooks::ping($record);

                Notification::make()
                    ->title(__('panel.webhooks.actions.ping_sent'))
                    ->body(__('panel.webhooks.actions.ping_hint'))
                    ->success()
                    ->send();
            });
    }

    /**
     * A new secret, shown once. The old one stops being valid at once, so the
     * receiving end has to be updated straight after.
     */
    public static function rotateAction(): Action
    {
        return Action::make('rotate_secret')
            ->label(__('panel.webhooks.actions.rotate'))
            ->icon('heroicon-o-key')
            ->color('warning')
            ->requiresConfirmation()
            ->modalDescription(__('panel.webhooks.actions.rotate_hint'))
            ->authorize('update')
            ->action(function (Webhook $record): void {
                $secret = Str::random(40);
                $record->forceFill(['secret' => $secret])->save();

                self::showSecret($secret);
            });
    }

    public static function showSecret(string $secret): void
    {
        Notification::make()
            ->title(__('panel.webhooks.secret.title'))
            ->body(__('panel.webhooks.secret.body', ['secret' => $secret]))
            ->warning()
            ->persistent()
            ->send();
    }

    public static function getRelations(): array
    {
        return [
            DeliveriesRelationManager::class,
        ];
    }

    public static function getPages(): array
    {
        return [
            'index' => ListWebhooks::route('/'),
            'create' => CreateWebhook::route('/create'),
            'edit' => EditWebhook::route('/{record}/edit'),
        ];
    }
}